The new Montana RUST Effect spray is now available - for the illusion of rust and oxidization. Ideal for hobby, DIY, or creative projects. Apply as a single colour, or both together as desired for an organic look. Can be used on different surfaces such as paper, cardboard, primed canvas, wood, glass, metal, ceramics, porcelain, stone, acrylic, and other paintable materials. The rust effect is created by a nitro-combi formulation that mimics the appearance of oxidized.